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I have a doubt regarding the use of fractal trees index in my tables. I create table specifing the TokuDB engine

CREATE TABLE `My_table` (
...
) ENGINE=TokuDB

Documentation says: "TokuDB uses a particular data structure called fractal trees, which is optimized for data that do not entirely fit memory."

But if I perform this query

SHOW INDEX FROM `My_table`

all indexes retreived for my table have index_type = BTREE

So... ...is this correct?

Andrea Zonzin
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1 Answers1

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That is correct, even though it says BTREE that is just a label.

You can double check with "show create table My_table;". If it shows "engine=TokuDB" then it's using Fractal Tree indexes.

tmcallaghan
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